US Bridges

SW 85th RD over N Fk Spring Rvr

Fair

Barton County, Missouri · S 2 T 30 N R 31 W · Structure no. 24391

Built
1986
39 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Prestressed Concrete
Length
149 ft
3 main spans
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

SW 85th RD over N Fk Spring Rvr is a prestressed concrete tee beam carrying SW 85th RD over N Fk Spring Rvr in Barton County, Missouri. It was built in 1986, so it is 39 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 49 by 2043. The structure is 149 ft (45.4 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSW 85th RD
CrossesN Fk Spring Rvr
LocationS 2 T 30 N R 31 W
RouteCounty Highway 485
CountyBarton County
StateMissouri
Coordinates37.37699, -94.31761
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length149 ft (45.4 m)
Longest span50 ft (15.2 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic49 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SW 85th RD over N Fk Spring Rvr built?

It was built in 1986, making it 39 years old in 2025.

What condition is SW 85th RD over N Fk Spring Rvr in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does SW 85th RD over N Fk Spring Rvr carry?

About 35 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SW 85th RD over N Fk Spring Rvr?

The structure is 149 ft (45.4 m) long with a longest span of 50 ft (15.2 m) and a deck 27 ft wide.

Who owns SW 85th RD over N Fk Spring Rvr?

It is owned by the County Highway Agency.